connection

问题 I have been searching in IBM forums/documentation, Google, and StackOverflow topics about this error, but I can't manage to find the solution. Situation Installed DB2 for test and education purposes, since I'm a student and I have to do a manual about the usage of this DB. Installation of DB2 and graphical administration through Data Studio. OS: Debian 7.7 Wheezy DB2 Version: 10.5 FixPack 4 (Cancuun Release) IBM Data Studio Version: 4.1.1 Installed DB2 and Data Studio as root. I can execute

问题 I have an application, that uses akka and now I want to connect to it via a socket connection. Therefor I use a machanism similar to the one from the scala page. But if I try to tell , while I have an open OutputStream , no message is received by the target. Here is my source code: object Connector { def main(args: Array[String]) { val port = 1337 val conf = ConfigFactory.load val system = ActorSystem("SDDB", conf.getConfig("SDDB")) val master = system.actorOf(Props[TestActor]) master ! "a"

问题 I recently restarted POW. On reloading the Rails app I'm working on, it hung. Checking Rails' logs I get the following repeating every 5-20 seconds: Connecting to database specified by database.yml I can interact with the Postgres db without issue through the Rails console, so there is no problem there. I haven't changed anything in my database.yml for weeks, so I don't think the problem is there. What might be the problem and how can I debug it? 回答1: Turns out it was caused by POW I had set

问题 I am using Spring 4.0.0, along with jOOQ 3.2.0 and BoneCP 0.8.0 for a web application. I have the PersistenceContext configured the same as this guide (please skim read it's a little too much code to paste here) http://www.petrikainulainen.net/programming/jooq/using-jooq-with-spring-configuration/ but with a smaller number of max connections and closeConnectionWatch = true for error checking. From what I can deduce, this guide is a non-XML version of the jOOQ website's own guide seen here

问题 I would like to do both of the following things: use audit triggers on my database tables to identify which user updated what; use connection pooling to improve performance For #1, I use 'system_user' in the database trigger to identify the user making the change, but this prevent me from doing #2 which requires a generic connection string. Is there a way that I can get the best of both of these worlds? ASP.NET/SQL Server 2005 回答1: Unfortunately, no. Identifying the user just from the

问题 How to check availability of internet connection(Wifi, GPRS, EDGE) in Blackberry. 回答1: Try this....it worked for me . protected static boolean isInternetAvailable() { boolean flag = false; if(WLANInfo.getWLANState() == WLANInfo.WLAN_STATE_CONNECTED){ flag = true; } else if(RadioInfo.isDataServiceOperational()){ flag = true; } return flag; } 来源： https://stackoverflow.com/questions/11670956/how-to-check-availability-of-internet-connectionwifi-gprs-edge-in-blackberry

问题 I want to use MYSQL in delphi xe10 with fireDAC. So, FDConnection on the form, then input basic information about my mysql db. But when I try to connect, there is an error "cannot load vendor library libmysql.dll or libmysqld.dll" I read embaradeco manual and I have been tried 1. copy libMySQL.dll to my “c:\program files (x86)\Embarcadero\Studio\\bin” : fail(That means cannot load db data, still got error) 2. specify path in FDDrivers.ini [MySQL] VendorLib=\libmysql.dll :fail So, I'm curious

问题 I have a raft of Excel 2013 workbooks that I have to refine, each with multiple sheets and multiple data connections and I am looking for a quick way to list: connection name connection string location(s) where connections are used (sheet name or range would be useful) I can see all this information in the connections dialogs but am having trouble tracking them down programmatically. I want to do this one file at a time so am not worried about running code across all the files, just something

问题 I am working on Ubuntu 11.10 Local branch of my git-repo is up to date I then wrote following command in terminal: heroku create --stack cedar and it said: Notice: on Wed, 20 June, our default stack will change to Cedar. http://bit.ly/Lh0rM5 Creating radiant-wind-7413... done, stack is cedar http://radiant-wind-7413.herokuapp.com/ | git@heroku.com:radiant-wind-7413.git Git remote heroku added All fine till now, then I typed following in terminal: git push heroku master and the following error

问题 Please tell me what is the use of TNS_ADMIN parameter in Oracle? I am working on Unix using oracle database. Is this parameter is required to locate the sqlplus. I am executing a script in which a update query is executed on Oracle Database. The script fails with 127 error code when executed with crontab. The script contents I suspect (eval) failing are ---------- cmd='sqlplus ${ORALOGIN} < SQLS ---------- eval $cmd 回答1: TNS_ADMIN tells sqlplus where to find the tnsnames.ora file. If you are